Mira Advance Flex Thermostatic Electric Shower 8.7kW

Mira Advance Flex Thermostatic Electric Shower - 8.7kW 1.1785.003

21 reviews

£336.00 (Inc. VAT)

In Stock



Thermostatic Stable Gauge

Precise temperature control

Standard showers can have hot temperature spikes when others in the house turn on taps or flush the toilet.

Thermostatic control means that this shower will hold its temperature steady at all times. It dynamically adjusts the hot and cold water offsetting the everyday changes in water pressure experienced in most family homes.


Only a cold water supply required

Electric showers are by far the most convenient to install. They connect to a cold water supply only and not to your boiler, warming the water using an element inside the shower. So if you're worried about your brother, sister, partner or anybody else using all the hot water in the house then this electric shower is certainly for you. Because no matter how much you us it, it won't run out or let you down when it comes to heat.

Mira Advance Care Visual & Audio Enhancements

Visually & Audio Enhanced

Simple day-to-day activities such as showering shouldn’t be seen as daunting and the Mira Advance does it best to make sure it’s not. It features high contract graphics , raised markings and light-touch buttons, all to make things easier for those short on sight or lacking in dexterity. For those hard of hearing it benefits from clear, audible beeps so you know when the shower is on or off plus clicks on both the shower handset and central dial.

Mira Advance Care Maximum Temperature

4 Different maximum temperature settings

With the Mira Advance it’s now even easier to set a maximum temperature. You have a choice of 4 different maximum temperature settings that can be changed at the flick of a switch during installation thanks to the really clever PCB unit.


What is limescale?

Sometimes it can be hard to tell if your shower is suffering from a build-up of limescale as most of the damage is done internally. In some cases you will get a chalky residue appearing on your shower head which will be a good indicator that it’s also inside the shower unit.

People living in hard water areas are definitely more susceptible to limescale so it’s critical to buy a shower that can effectively deal with it otherwise you may have to replace your appliances before you think.


How does Mira Clearscale™ help?

Mira have designed their showers with longer heating elements and larger gaps between the coils ensuring that the heating tank produces a consistent temperature and eliminating hot spots which is where the limescale builds up.

Delayed shutdown also assists by flushing out any leftover hot water.


Mira shower heads

The nozzles on Mira shower heads also help deal with limescale due their rub-clean nature. A soft cloth can be used to simply wipe away any build ups keeping your shower head looking clean and functioning perfectly.


10mm cable size

The right size cable depends on the kW rating of your shower. The higher the rating the greater the flow of heated water will be, so you need to be sure to choose the correct cable size for your shower. This particular shower recommends using a 10mm cable.

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BEAB Care Mark Product

BEAB care approved

A BEAB Care Mark approved product will guarantee a stable water temperature. It also guarantees that the user will protect from scalding if there were rapid changes in incoming water temperatures. The BEAB Care Mark can only be awarded to products that already have standard BEAB approval meaning that the product has additional safety and performance features. These features have been developed to keep in mind the care industry like hospitals, care homes and hotels.

RNIB Approved Product

RNIB Tried & Tested

RNIB approval on a product lets blind and partially sighted people know that it is suitable for them. RNIB tried and tested is based on a thorough user testing experience so you know that it’s been designed and made to suit your every need. It ensures that the product features the highest usability and accessibility for extra peace of mind.

Mira Showers 2 Year Guarantee

Mira 2-year guarantee

Mira has meant quality for more than 100 years. This product comes with a 2-year guarantee so you can enjoy Mira's style, comfort and expert design with total peace of mind.

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Mira Showers

A century of innovation

Mira Showers are renowned for excellence and innovation. They are dedicated to making customers' moments matter, from the product design stage right through to aftercare. The company offer a diverse range of showers, shower enclosures and taps to suit a variety of different needs, ensuring you'll always find a Mira product that's right for you.

Creators of the dual-outlet electric shower and the very first thermostatic mixer, Mira have won a number of design awards including the Queen's Award for Enterprise (Mira Sport Max) and the Red Dot Award (Mira Mode Digital Shower).

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Features and Benefits:

  • Thermostatic control for safe and comfortable water temperature
  • Maximum temperature safety feature
  • Audible alerts
  • High contrast visuals
  • Matte finished panel
  • Easy to operate controls – easy grip buttons and handles
  • 3 different spray modes
  • Clearscale Pro technology – limits limescale for a longer lifespan
  • Adjustable maximum temperature setting between 41 and 48 degrees
  • Includes phased shutdown system for a safer shower experience for all
  • WRAS, BEAB, KIWA UK, and RNIB approved
  • 2 year warranty

Mira have taken great care in the design of their Advance Flex Thermostatic electric shower, and it really shows. Built with the whole family in mind, this is a shower that has safety at its core, especially for vulnerable users. Mira used research and in-depth interviews with users, Occupational Therapists and specialist organisations such as the RNIB and Skin Health Alliance to create a user-centric shower experience.

Features for the visually impaired are included on this model, including high-contrast visuals on critical touch points. These visuals really stand out on its anti-glare panel, which decreases light reflection. The shower’s central controls are large and simple to operate, making them suitable for everyone. What’s more, the various settings and temperature dials are highly tactile and make an audible click when operated.

Everything about this shower is designed with you in mind. A sleek and slimline construction makes it’s easy to install and use, and it’s sure to look great in any bathroom.

Features and Benefits:

  • Thermostatic Temperature Control means you can rest assured that the temperature won’t suddenly give you a too hot or cold surprise. You can also select from four different maximum temperature settings to get the perfect warmth when showering, and maximum safety.
  • A phased shutdown system means that any remaining hot water is flushed from the tank after use, ensuring the next user can safely shower.
  • Mira Clearscale Pro™ technology greatly reduces limescale buildup, making the shower better-performing and longer-lasting.
  • Mira’s Opti-Flo Pro™ system delivers consistent shower performance all-year round, regardless of the water pressure.
  • The fixtures on this Mira shower are straightforward to operate; the showerhead is easily adjusted using just one hand, and there is a secondary showerhead position for greater flexibility.
  • A 110mm showerhead with three spray modes means you can experiment to find the spray pettern that feels the best for you.  
  • Cleaning is a simple task thanks to a spray plate that can be effortlessly removed and wiped down.
  • A 2-year manufacturer guarantee is included with the Mira Advance Flex Thermostatic Electric Shower, giving you the peace of mind to get set up and use your shower without issue.

Includes the Following:

  • All shower fixtures and fittings.
  • Installation and User Guide, including checklist and installation template.
  •  2-year guarantee giving access to support from the Mira helpline and engineers.

Technical specifications

  • Cold mains feed
  • Supply Voltage : 230v + 10%
  • Supply Rating : 40 amp
  • Terminal block connections : Maximum 16mm2
  • Water entry points : Right (Rising, falling or rear with an elbow)
  • Cable entry points : Right (Rising, falling or rear)
  • Inlet connections: Brass inlet connector. ½” BSP Male and 15mm compression fitting
  • Outlet connections : ½” BSP Male
  • Minimum maintained pressure : 0.5 bar (1.0 bar BEAB Care)
  • Maximum maintained pressure : 5.0 bar
  • Maximum static pressure : 10.0 bar



Made in the UK

For 100 years, Mira have been designing, manufacturing, and assembling their products right here in the UK. State-of-the-art manufacturing processes and advanced equipment is used at both the Cheltenham and Hull manufacturing plants. This ensures the highest level of quality no matter the product being made. And for complete peace of mind, Mira test every single product and spare part before it leaves their factories, guaranteeing that they exceed the industry recommendations.


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Mira Approved Retailer Banner

Mira Trustpilot Score

2 Year Guarantee

Mira Advance Flex Thermostatic Electric Shower - 8.7kW 1.1785.003 Video


Technical Drawings

Mira Advance Flex Thermostatic Electric Shower 8.7kW
Mira Advance Flex Thermostatic Electric Shower 8.7kW


Mira Advance Flex Thermostatic Electric Shower - 8.7kW 1.1785.003 Specifications
Components Complete Showers
Shower Type Electric
Outlets Single Outlet
Style Contemporary
Colour White
Head Type Handset
Supply Type HP / Combi
Low Pressure Suitable No
Combi Boiler Suitable Yes
High Pressure Suitable Yes
Mobile App Connectivity No
Amazon Alexa Connectivity No
Google Home Connectivity No
Power 8.7 kW
Spray Patterns 3
Water Feed Rear Wall Fed
Temperature Control Thermostatic
BEAB Care Yes
RNIB Approved Yes
Range Advance

Mira Advance Flex Thermostatic Electric Shower - 8.7kW 1.1785.003


Was £358.75
Save 6%

£336.00 (Inc. VAT)

Stock status: In Stock

Key Features:

  • Mira Clearscale™ technology cuts limescale by 50% for a better performing, longer lasting shower
  • Large colour contrasted rotary lever and tactile raised areas aided by audible clicks promote easy use
  • High contrast visuals on critical touchpoints to make navigation easy
  • 2-year guarantee
Order in next for delivery tomorrow - 28/02/2024

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If you change your mind about the product when you receive it you can notify us any time within 365 days and return it for a full refund at your own cost. Any refunds will be made within 14 days of receiving your returned item. You are expected to cover the cost to return the item and your initial delivery charge will not be refunded.

Read the Plumbworld Returns Policy

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What are electric showers and why do you need one?

This video will guide you through the in’s and out’s of an electric shower. It talks about different types of shower head, thermostatic showers and different kilowatts, to help you decide which shower is best suited for you.

For more information on showers in general and different types of showers available click the link below.

Shower Buying Guide

Often bought with

21 Product Reviews

  • Alan P
    5/ 5

    Bought this as a direct replacement for a 12 year old unit which had low water flow plus a minor leak. My plumber recommended a new unit rather that fixing the old one, which seemed logical. The old unit was all white, whereas this one has black highlights for partially-sighted users. Very happy with this one so far, (it has only been installed for about 6 weeks). Hope it lasts as long as the old Mira Advance it replaced. Plumbworld price was the best I could find at the time.

  • Paul Dove
    5/ 5

    Excellent Service from PlumbWorld. Purchased a Mira Advance flex shower. Quality Product. Best price by far anywhere. None of the other trade suppliers where anywhere close. Price great. Delivery excellent, Communication and after service follow up were really good. Very impressed. First time I've used PlumbWorld, in future it will be the first site I check. Highly recommended.

  • Tony Plant
    5/ 5

    The Mira advance shower was bought as a replacement for another make of shower that was supposed to be thermostatic ( it wasn’t )as a disabled shower user I need not to get scalded and a long hose so carers can wash me , not much to ask ! Anyway this advance flex shower from Mira meets all my requirements and more , five stars for a great shower

  • Christopher Breeds
    5/ 5

    My old Mira packed up after many years of faithful service so I found this new one at an excellent price at plumbworld. It is an excellent shower which works really well. The best thing is that my local plumber fitted it quickly and easily and the installation cost no more than what I saved by buying it at plumbworld.

  • Gerard lynch
    5/ 5

    Brilliant piece of kit very easy to use with great controls. Quickly heats and great control of temperature. Shower rail works very smoothly and is very solid wit great smooth adjustment with 3 settings on shower head. I use it in a wet room as I am disabled and it so easy to use. Highly recommend.

  • D Bailey
    5/ 5

    Couldn't find this available for immediate dispatch anywhere else These guys had it and at one of the best prices The shower unit itself is super easy to fit as a replacement for the previous version. only one let down is i prefer the previous shower head spray to this new one.

  • Mick Franklin
    5/ 5

    Purchased on behalf of an elderly neighbour after their old Mira shower had reached its end of life after about 10 years! This unit is neater in appearance and was a "straight" swap for all connections. Excellent service from Plumbworld and best price online.

  • mary bentley
    5/ 5

    Bought as a replacement for my Mira Shower of 10 years. This one is even better than my old shower which had developed a leak. Excellent assistance from your customer service who answered all my queries and gave me good advice. Item delivered promptly

  • Martin Callaway
    5/ 5

    Bought as a replacement for old Mira shower, Plumbworld were best price and with very speedy delivery. Old shower replaced with new in less than an hour, brilliant.

  • Mr Andrew Miles
    5/ 5

    This was a one to one replacement so install was very easy. It's a shower and nice having one the works correctly. Plumbworld was the best price and fast delivery.

  • Robin Waters
    5/ 5

    An shower that is at the top end in cost but delivers a safe environment whoever you are with responsive consistent water temperature and a good flow rate

  • Alison Wade
    5/ 5

    Bought as a replacement for an existing Mira Advance Flex - so all pipework entries etc were the same - great product

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